RUNX1 and acute lymphoblastic leukemia: OGM detected a translocation t(X;13)(q25;q13.1) in an ETV6::RUNX1 BCP-ALL (ALL29) leading to potential fusion of exon 1 of the PBS5B gene to exon 3–35 of STAG2, which both encode for proteins of the cohesion complex (Figure 7A).